Combined tool-holder and cutter



F. 0. HOAGLAND.

COMBINED TOOL HOLDER AND CUTTER.

APPLlcATloN min DEc.29, 1919'.

1,388,630. Patented July 5,1921.

aww/M1501,

@Mor/Mu UNITED STAT-Es PAT FRANK O. HOAGLAND, OF BRIDGEPORT,CONNECTICUT, ASSIGNOR TO THE BILTON MACHINE TOOL COMPANY,. 0FBRIDGE-PORT; CONNECTICUT, .A CORPORATION OF CONNECTICUT. l

communi) Toon-HOLDER, A ND CUTTER.

Application filed December 29, 1919. l Serial No.- 347,954'.

To all whom t may concern:

Be it known that I, FRANK O. HOAGLAND;

a citizen of the United States, and resident.

class which is particularly well adapted for thread cutting and otherclasses of work; to design the holderand cutter so that .the latter maybe easily inserted in and removed from the holder and likewise adjustedwith relation to the holder and firmly secured in position; further toaccomplish the above objects in a Way which will greatly facilitateregrinding and sharpening ofthe cutters from time to time, and wherebythe cutter maybe used down to a short length and still be held irmly'inthe holder.

With these and other objects in view the invention resides and consistsin the construction and novel combination and arrangement of partshereinafterfmore fully described, illustratedin the accompanyingdrawings, and pointedl out in the claims hereto appended, it beingunderstood that various changesv inv the form, proportion, size andminor details of construction within the scope of the claims may beresorted to without departure from the spirit or sacrificing any of theadvantages of the invention.

Similar characters of reference denote like or corresponding partsthroughout the several figures of the accompanying drawings forming apart of this specification, and upon which, n

Figure 1 is an elevational view of my novel combined holder and cutter;v

Fig. 2 is a perspective view of the holder and cutter of Fig. 1, withthe shank of the holder broken away;

Fig. 3 is a central vertical section of the holder and cutter of Figs. 1and 2;

Fig. 4 shows an end view of the cutter and holder, as when looking downon Fig. 2;

Fig. 5 is an elevational view of a slightly modified form 0f cutter; and

Fig. 6 is a perspective view of my improved cu'tter applied to a gooseneck form of holder. I i

Referring in detail to the characters of reference marked upon thedrawings, 10 represents the cuttery holder having a shank 11 and althickened head portion 12. The lower. rear side 13 of the head ispreferably beveled off as shown to form-a clearance for Athe tool. Thelower portion of the face of the head is cut away to form a pocket 14 toreceiveV the critter' 15. The walls ofthis pocket are formed atanincline with reference to the side `portions of the head of .the`

holder, to position'the cutter crosswise therein and at an incline toinsure a clearancek to` both sides of the cutting 'point 16 whichavoidsthe necessity of grinding fora clearance on the tool point. Aspline y17 is formed on the inner face of the head 'of the holder and isdisposed crosswis'e and inclined to conform to the incline of the upperwall of` the pocket, and serve to receive the way 18 cut inthe back ofthe cutter which is adapted to be moved backward and forward in thepocket and upon the'spline for its longitudi` nal adjustments. l

Specication of vLetters Patent. i Patented July 5, 1921i sov A clampingplate 19 is providedto fit upon j 'against the inner side of the pocketand spline in the head of the holder. A pin 20 is carried by the plateand is positioned in a hole 21 of the head to retain the clamping platein vertical alinement with the aXis of the pinion 22. This clampingplateis further provided with a hole 23 therethrough having an annularenlargement 24 to receive a collar 25 mounted upon the threaded end ofthe above mentioned pinion 22. A clamping I'nut 26 is mounted upon thisthreaded end of the pinion and serves to engage the collar and to clampthe plate 19 against the cutter.

The pinion 22 is provided with 'an enlarged tapered head 27 which forthe most part is countersjunk in the back of the head of the holder, andits outer end is rounded vand slotted to serve for the engagement of a Yin the peripheral portion of the pinion eX- tends longitudinally toengage a rack 29 formed in the upper 'edge portion of the cutter andwhere'ly the latter is moved longitudinally backward and forward in thepocket ot the holder guided by the spline, when the pinion is turnedWithin the holder and plate. From this construction it Will be apparentthat soon as the cutter is ad# justed to the position desired the nutupon the threaded end of the pinion may be tightened and the plateclamped upon the cutter to irmly secure the saine in position. By reasonoit' this torni of construction the cutter which is obviously made otexpensive steel, can kbe sharpened and Vreset trom time to time and useddown to short lengths thus causing a great'saving in the cost ofcutters. Having` thus described my invention, what l cla-im and desireto secure by Letters Pattent, is-l Y l. A tool holder comprisinga headhaving` a recess in one side and a hole therethrough, a: cutterpositioned'at an incline kin the recess yand having a toothed upper edgeportion forming a racine pinion hav-A ing a tapered head positionedinthe holder and engagingthe rack orn the cutter, a clamping' platepositioned on 'the head of Vthe holder to .engage the face of vthecutter, means to Lguidethe cutter at an angle when operated by thepinion, and means to draw the head of the pinion in the holder and toclamp and secure the cutter in position.

2. A combined tool holder and cutter, comprising a head having' a recessformed in one side and an incline spline formed in the side Wallthereof, a cutter positioned in thev recess and having a rack and agroove to receive the spline, Ia pinion positioned in the holder vtoengage the toothed rack ofthe cutter, la clamping' plate positioned onthe face of the head oi' the holder to engage the cutter, a collarseated aQ'ainst-theplate, and

a nut mounted upon thethr'eaded'end of the 45 pinion to engagethe'collar 'and'cl'a'mp the plate `against the cutter,

S. A tool holder` comprising a head havingv a hole therethrough and arecess intersecting the hole, a critter positioned inthe recess andhaving a toothed upper edge portion Al'ormingfa rack, a pinionpositioned in the hole to engage the rack of the cutter, and havingathreaded end'portion, an attachable clampingfplate positioned on thepinion 'to engage the ytace of the ycutter, a spline on the holder toiguidet'he cutter when operated bythe'pinion, andineans upon the pinionto lock the same. in its adjusted positions and to clam-p and hold thecutter.

4t. A combined -tool holder'and cutter,'com prising` a head having arecess formed in one side and an incline spline formed inthe side. Walltl1ereo't,'a cutterV positioned in the recess and havinga groove toreceive the spline, a

pinion `'positioned in the *holder tot engagethe cutter andk havingmeans for turningthe same, a clamping plate kpositioned von the threaded1end ,pinion to eln'gageftheV cutter, a collar alsoniounted oir thepinion rand seated vagainst the plate, 7and a nut mounted uponthethreadedend of the Ipinion to engage the collar -and clamp the'plateagainst thecutter. l

Signed at Bridgeport in the county ot Fairfield and. State of.Connecticut this 23rd day ot December, A. D. 1919. f

rita-NK fo. Hrmoratti). f

Witnessesz' l Emmer 00.'. HULL,

LILLIAN ML ALL'ING.

